The tech that hairdressers use are not easy to handle they use hair curlers, hair straighteners, blow dryers, etc
you can get your hair chemicaly strightend at your hair dressers
Hair dressers would use math in making change for a person, mixing of hair colours (mixing colour with developer in 2/3 to 1/3 ratios).
hair dressers use maths by making measurements in hair colour mix and cuting hair and the money!
Cut hair
Hair Stylist,Hair Dressers or Salonists.
stylist
it depends who you go to!
California and Ohio
Hair dressers
A good place to find hair feathers is to go to your local hair dressers. Many hair dressers carry these kind of hair feathers around the world in many countries.
ghd itor go to a hair dressers
Hair dressers must obtain certification to get a job. Some popular national schools are Empire (empirebeauty.com) and Jean Madeline (jeanmadeline.com).